Bump version to 2.2.4

Update copyright notice

Merge branch 'feature/ios13-support'

Fix dark mode apperance in example

Use full screen modal presentation style in example

Update project settings as recommended by Xcode 11

Merge pull request #53 from Ewg777/patch-1

Update TGLStackedViewController.m

Version bump to 2.2.3

Merge branch 'feature/ios12'

Update default values to fix iPhone X layout in sample

Fix layout issue with background view in sample

Ignore xcshareddata

Remove weak references

Update project settings as recommended by Xcode 10